Calyptospora sp. in Brachyplatystoma vaillantii trapped at the Vigia, State of Pará, Brazil

Moacir Cerqueira Da Silva,Michele Velasco Oliveira Da Silva,Sérgio Carmona Da São Clemente,José Antônio Picanço Júnior

doi:10.1590/s1984-29612012000200020

Abstract

The article describes the first occurrence of hepatic coccidiosis in catfish of the species Brachyplatystoma vaillantii, captured in the coastal region of the Vigia city, state of Pará, Brazil, caused by species of the genus Calyptospora, family Calyptosporidae. Thirty specimens of piramutabas were examined where 60% were infected with liver location, featuring numerous mature and immature oocysts, grouped or isolated, with four sporocysts in pyriform shape. They were described on their morphology and dimensions of the oocysts and sporocysts, obtained from light microscopy and differential interference contrast.

Highlights

The article describes the first occurrence of hepatic coccidiosis in catfish of the species Brachyplatystoma vaillantii, captured in the coastal region of the Vigia city, state of Pará, Brazil, caused by species of the genus Calyptospora, family Calyptosporidae
The objective of this study was to describe the morphology of Calyptospora oocysts found in the liver of B. vaillantii, by conventional light microscopy and differential interference contrast and thereby to make an initial assessment of the coccidiosis affecting this fish from the Amazon River basin
The main organ affected by Calyptospora sp. in the examined fish was the liver, corroborating the findings reported for Arapaima gigas (ALBUQUERQUE; BRASIL-SATO, 2010), C. lepidota (AZEVEDO et al, 1993; 1995), C. ocellaris (BÉKÉSI; MOLNÁR, 1991), fishes of the genus Serrasalmus (CASAL et al, 2007), S. niger (CHEUNG et al, 1986), and Fundulus notti(FOURNIE et al, 1985)

Summary

Introduction

The article describes the first occurrence of hepatic coccidiosis in catfish of the species Brachyplatystoma vaillantii, captured in the coastal region of the Vigia city , state of Pará, Brazil, caused by species of the genus Calyptospora, family Calyptosporidae. They were described on their morphology and dimensions of the oocysts and sporocysts, obtained from light microscopy and differential interference contrast. The family Calyptosporidae was first described in fishes by Overstreet et al (1984) and comprises only five species: Calyptospora funduli (OVERSTREET et al, 1984); C. empristica (FOURNIE et al, 1985); C. serrasalmi (CHEUNG et al, 1986);

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